Eriogonum umbellatum-Sulphur flower buckwheat
Best native plant seeds for supporting pollinators in dry gardens.
Perhaps the most familiar of the wild buckwheat species, sulphur flower buckwheat grows abundantly in hot, dry, open, and rocky places from low to high elevation throughout the western United States. Due in part to its large distribution, sulphur flower buckwheat is extremely variable, and sometimes hard to identify because the different varieties can look very different from one another. There are 25 varieties of sulphur flower buckwheat in California alone. In the Klamath-Siskiyou there are at least 15 separate varieties that vary in shape and form. The typical specimen has rounded, mounding, and low-growing evergreen foliage with bright yellow flower clusters. Sulphur buckwheat is drought tolerant. The flowers are prized by numerous native pollinators, including native bees, pollinating flies, beetles, butterflies and wasps. Wild buckwheats, in general are used by many species of butterfly as larval host plants. Perfect for a sunny, dry location or large rock garden. Sulphur flower buckwheat (Eriogonum umbellatum) seed packets contain approximately 100 seeds per packet.
$7.00
Owner Satisfaction
4.6
/ 5
Category Rank
3241
/ 6513
#3241 in Seeds & Seed Tape
Price vs Category Average
-34%
Below average
Plant Type
Perennial Wildflower
/ Perennial Wildflower
Who it's for
- Gardeners committed to supporting local biodiversity and insect populations.
- Homeowners seeking drought-tolerant, sustainable plants for arid environments.
- Land managers needing effective, ecological solutions for soil stabilization.
Who should skip it
- Gardeners expecting quick results from seed propagation.
- Individuals with clay-heavy or poorly draining garden soils.
- Enthusiasts preferring vibrant, large-flowered ornamental garden plants.
Performance breakdown
Pollinator Impact
A powerhouse for native bees, butterflies, and beneficial insects.
Drought Resilience
Thrives in arid conditions with minimal supplemental irrigation required.
Landscape Versatility
Ideal for rock gardens and sunny, low-maintenance xeriscaping projects.
Genetic Diversity
Offers a wide range of regional varieties for unique garden aesthetics.
Establishment Ease
Requires specific fall or winter sowing for optimal germination success.
Year-Round Interest
Evergreen foliage provides structural appeal long after the blooms fade.
Key Specs
Plant Type
Perennial Wildflower
Flower Color
Orange, Yellow
Seed Count
100 seeds per packet
Sunlight Exposure
Sunny
Water Requirements
Drought tolerant
Planting Season
Fall to late winter
Pollinator Friendly
Yes
Edible
No
Know before you buy
For the best germination results, sow these seeds from fall through late winter. This timing mimics the natural cycle of the plant, allowing the seeds to experience the cold stratification required for successful growth.
No, this species is not recommended for container gardening. It is best suited for in-ground planting in sunny, dry locations or large rock gardens where it can establish its root system properly.
Sulphur flower buckwheat is highly drought-tolerant and requires very little maintenance once established. It thrives in hot, dry, and rocky conditions, making it an excellent low-water choice for xeriscaping.
Yes, it is an excellent choice for a pollinator garden. Beyond attracting bees, flies, and beetles with its bright yellow flowers, it serves as a vital larval host plant for many butterfly species.
Sulphur flower buckwheat is extremely variable due to its large distribution across the western United States. There are dozens of distinct varieties, which can lead to differences in shape, form, and even flower color between individual plants.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$7